Please do as Josh asked. If you look in the sight glass on the bottom door, you should be able to see a red light, please let us know if you see it, and let us know if it is flashing or on steady. If it is flashing, please let us know how many times it flashes before there is a puase in flashes, then it will start flasing the same number of times over and over.

please do as Josh asked. If you look in the sight glass on the bottom door, you should be able to see a red light, please let us know if you see it, and let us know if it is flashing or on steady. If it is flashing, please let us know how many times it flashes before ther is a puase in flashes, then it will start flasing the same number of times over and over.

Nothings happening at the bottom door but I looked on the top right upper corner and the light (DS1 or DS2?? Botton) blinks 3 times at a time.

please do as Josh asked. If you look in the sight glass on the bottom door, you should be able to see a red light, please let us know if you see it, and let us know if it is flashing or on steady. If it is flashing, please let us know how many times it flashes before ther is a puase in flashes, then it will start flasing the same number of times over and over.

As I said nothings happening to the light at the bottom. Is this mean that I need to replace the hot surface ignitor?

This must be a downflow furnace? Take the top cover off and there should be a place on the inside of door that will tell you what the three flash code means. Please let us know if you find it.

I believe the three flash means pressure switch stuck open. Check to make sure vent intake and exhuast are not partially plugged. Also check to make sure pressure switch hoses and inlets are not plugged make sure there is no water in the hoses. You should have a rubber clamp that hooks the exhuast to the draft inducer. Try removing this and see if it works. If it does it means you have a plugged exhuast pipe. Make sure to hook the clamp back up right away, as it is very dangerous to run the system this way for any amount of time(other than for trouble shooting). Let us know what you find.

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